Development of a new type micro slurry-jet erosion (MSE) tester for evaluation of wear properties of hard thin coatings

概要

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Versatile and reliable techniques for evaluation of hard thin coatings are necessary forthe development and tribological assessment of new coatings. We have proposed a newtype of micro slurry-jet erosion test (MSE), i.e. a solid particle impact erosion test forswift evaluation of wear properties of hard thin coatings. We are using a new type ofMSE test apparatus (pot type tester) that makes it possible to obtain the wear loss perunit mass of erodent, which in this test was alumina particles with 1.2 μm in averagesize. Its performance was evaluated using a Si wafer plate under various test condition.In addition, the MSE tester was demonstrated by evaluating the wear resistance of TiNon high speed steel substrate. The new MSE test generates highly reproducible resultsand is very sensitive to the quality of the coatings.